/*
 * Copyright (c) 2009, okazoh_tk. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *  - Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *  - Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *  - Neither the name of the copyright holder nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include "alkes/media/ImageProvider.h"
#include "alkes/media/ImageDecoder.h"
#include "alkes/media/ImageBuffer.h"
#include "alkes/media/DecoderFactory.h"

namespace alkes {

ImageProvider::ImageProvider(DecoderFactory* factory)
: factory_(factory)
{
}

ImageProvider::~ImageProvider()
{
}

void ImageProvider::setDecoderFactory(DecoderFactory* factory)
{
    factory_ = factory;
}

DecoderFactory* ImageProvider::getDecoderFactory()
{
    return factory_;
}

ImageBuffer* ImageProvider::decodeImage(const char* imagefile, PixelFormat format)
{
    if (!imagefile)
        return 0;

    DecoderFactory* factory = getDecoderFactory();
    ImageBuffer* result = 0;

    if (factory)
    {
        ImageDecoder* decoder = factory->createDecoder(imagefile, format);

        // TODO: post event?

        if (decoder->decode(imagefile))
        {
            result = decoder->getResult();
        }

        factory->destroyDecoder(decoder);
    }

    return result;
}

ImageBuffer* ImageProvider::decodeImage(void* address, uint32_t size, PixelFormat format, void (*destructor)(void*))
{
    if (!address || 0 == size)
        return 0;

    DecoderFactory* factory = getDecoderFactory();
    ImageBuffer* result = 0;

    if (factory)
    {
        ImageDecoder* decoder = factory->createDecoder(address, size, format);

        if (!destructor)
        {
            // decode now!
            if (decoder->decode(address, size))
            {
                result = decoder->getResult();
            }

            factory->destroyDecoder(decoder);
        }
    }

    return result;
}

ImageBuffer* ImageProvider::createImage(uint16_t width, uint16_t height, PixelFormat format)
{
    DecoderFactory* decoder_factory = getDecoderFactory();
    ImageBufferFactory* image_factory = decoder_factory->getImageBufferFactory();

    return image_factory->createImageBuffer(width, height, format);
}

}
